Pulsar Audio has officially launched IPA 25, a powerful four-in-one dynamics processor that builds on an iconic American bus compressor design while expanding it into a versatile tool for today’s producers and engineers.

Following one of the company’s fastest pre-launch campaigns to date, IPA 25 is now available worldwide.

A Modern Take on a Classic

At its core, IPA 25 delivers the authentic RMS-based detection and timing behaviour of the legendary hardware unit. But instead of being limited to a single fixed circuit, users can switch seamlessly between three fully modelled gain reduction topologies—or bypass harmonic modelling entirely for clean compression.

Four Distinct Modes

  • Clean VCA – Transparent envelope control without harmonic coloration
  • Original Hardware VCA – Faithful to the classic circuit, with punchy precision and subtle harmonic rounding
  • V-Mu – Tube-inspired saturation with softer transients and warm low-mid character
  • N-Diode – Diode bridge grit with asymmetrical clipping and enhanced midrange presence
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Beyond the Original

IPA 25 introduces advanced features designed for modern workflows, including:

  • Integrated intelligent clipper & limiter with flexible routing
  • Visual sidechain EQ with free-draw curves
  • Mid/Side & Stereo Link operation (feedforward or feedback)
  • Lookahead & Lookbehind for precise envelope timing
  • Zero-latency mode for real-time tracking
  • External sidechain support
  • Low CPU usage with optional oversampling

For those who want the stock tone, IPA 25 delivers with RMS-driven response, 2520 op-amp modeling, and transformer coloration. For those seeking more, its alternate harmonic modes and workflow tools make it far more than a simple emulation.

Proven in the Studio

In blind ABX tests against the original unit, listeners could not reliably tell IPA 25 apart from hardware—proof of its accuracy in real-world mix scenarios.

Early adopters have already praised it as “glue without smearing” and “a cleaner bus workflow, one plugin instead of three.”

Pricing & Availability

IPA 25 is available now for €99 (regular price €149).

With its combination of classic tone, alternate harmonic models, and modern workflow enhancements, IPA 25 is designed to be a mix-ready dynamics toolkit for today’s sessions.

For full details head on over to Pulsar Audio www.pulsar.audio